/* The copyright in this software is being made available under the BSD
 * License, included below. This software may be subject to other third party
 * and contributor rights, including patent rights, and no such rights are
 * granted under this license.
 *
 * Copyright (c) 2010-2015, ITU/ISO/IEC
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
 *    be used to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 */

/** \file     TEncAnalyze.h
    \brief    encoder analyzer class (header)
*/

#ifndef __TENCANALYZE__
#define __TENCANALYZE__

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include <stdio.h>
#include <memory.h>
#include <assert.h>
#include "TLibCommon/CommonDef.h"
#include "TLibCommon/TComChromaFormat.h"
#include "math.h"
#if EXTENSION_360_VIDEO
#include "TAppEncHelper360/TExt360EncAnalyze.h"
#endif

//! \ingroup TLibEncoder
//! \{

// ====================================================================================================================
// Class definition
// ====================================================================================================================

/// encoder analyzer class
class TEncAnalyze
{
private:
  Double    m_dPSNRSum[MAX_NUM_COMPONENT];
  Double    m_dAddBits;
  UInt      m_uiNumPic;
  Double    m_dFrmRate; //--CFG_KDY
  Double    m_MSEyuvframe[MAX_NUM_COMPONENT]; // sum of MSEs
#if JVET_F0064_MSSSIM
  Double    m_msssim[MAX_NUM_COMPONENT];
#endif

#if EXTENSION_360_VIDEO
  TExt360EncAnalyze m_ext360;
#endif

public:
  virtual ~TEncAnalyze()  {}
  TEncAnalyze() { clear(); }

#if JVET_F0064_MSSSIM
  Void  addResult( Double psnr[MAX_NUM_COMPONENT], Double bits, const Double MSEyuvframe[MAX_NUM_COMPONENT], const Double msssim[MAX_NUM_COMPONENT])
#else
  Void  addResult( Double psnr[MAX_NUM_COMPONENT], Double bits, const Double MSEyuvframe[MAX_NUM_COMPONENT])
#endif
  {
    m_dAddBits  += bits;
    for(UInt i=0; i<MAX_NUM_COMPONENT; i++)
    {
      m_dPSNRSum[i] += psnr[i];
      m_MSEyuvframe[i] += MSEyuvframe[i];
#if JVET_F0064_MSSSIM
      m_msssim[i] += msssim[i];
#endif
    }

    m_uiNumPic++;
  }

  Double  getPsnr(ComponentID compID) const { return  m_dPSNRSum[compID];  }
#if JVET_F0064_MSSSIM
  Double  getMsssim(ComponentID compID) const { return  m_msssim[compID];  }
#endif
  Double  getBits()                   const { return  m_dAddBits;   }
  Void    setBits(Double numBits)     { m_dAddBits=numBits; }
  UInt    getNumPic()                 const { return  m_uiNumPic;   }
#if EXTENSION_360_VIDEO
  TExt360EncAnalyze& getExt360Info() { return m_ext360; }
#endif

  Void    setFrmRate  (Double dFrameRate) { m_dFrmRate = dFrameRate; } //--CFG_KDY
  Void    clear()
  {
    m_dAddBits = 0;
    for(UInt i=0; i<MAX_NUM_COMPONENT; i++)
    {
      m_dPSNRSum[i] = 0;
      m_MSEyuvframe[i] = 0;
#if JVET_F0064_MSSSIM
      m_msssim[i] = 0;
#endif
    }
    m_uiNumPic = 0;
#if EXTENSION_360_VIDEO
    m_ext360.clear();
#endif
  }

#if JVET_D0134_PSNR
  Void calculateCombinedValues(const ChromaFormat chFmt, Double &PSNRyuv, Double &MSEyuv, const Bool trueBitdepthPSNR, const BitDepths &bitDepths
#if JVET_D0186_PRECISEPSNR
    , UInt * pmaxval = 0
#endif
    )
#else
  Void calculateCombinedValues(const ChromaFormat chFmt, Double &PSNRyuv, Double &MSEyuv, const BitDepths &bitDepths
#if JVET_D0186_PRECISEPSNR
    , UInt * pmaxval = 0
#endif
    )
#endif
  {
    MSEyuv    = 0;
    Int scale = 0;

    Int maximumBitDepth = bitDepths.recon[CHANNEL_TYPE_LUMA];
    for (UInt channelTypeIndex = 1; channelTypeIndex < MAX_NUM_CHANNEL_TYPE; channelTypeIndex++)
    {
      if (bitDepths.recon[channelTypeIndex] > maximumBitDepth)
      {
        maximumBitDepth = bitDepths.recon[channelTypeIndex];
      }
    }

#if JVET_D0134_PSNR
    const UInt maxval                = (trueBitdepthPSNR == true) ? (1 << maximumBitDepth) - 1 : 255 << (maximumBitDepth - 8);
#else
    const UInt maxval                = 255 << (maximumBitDepth - 8);
#endif
    const UInt numberValidComponents = getNumberValidComponents(chFmt);

    for (UInt comp=0; comp<numberValidComponents; comp++)
    {
      const ComponentID compID        = ComponentID(comp);
      const UInt        csx           = getComponentScaleX(compID, chFmt);
      const UInt        csy           = getComponentScaleY(compID, chFmt);
      const Int         scaleChan     = (4>>(csx+csy));
      const UInt        bitDepthShift = 2 * (maximumBitDepth - bitDepths.recon[toChannelType(compID)]); //*2 because this is a squared number

      const Double      channelMSE    = (m_MSEyuvframe[compID] * Double(1 << bitDepthShift)) / Double(getNumPic());

      scale  += scaleChan;
      MSEyuv += scaleChan * channelMSE;
    }

    MSEyuv /= Double(scale);  // i.e. divide by 6 for 4:2:0, 8 for 4:2:2 etc.
    PSNRyuv = (MSEyuv==0 ? 999.99 : 10*log10((maxval*maxval)/MSEyuv));
#if JVET_D0186_PRECISEPSNR
    if (pmaxval != 0)
    {
      *pmaxval = maxval;
    }
#endif
  }

#if JVET_D0186_PRECISEPSNR
  Void    printOutPrecise(FILE * fd, Char cDelim, const ChromaFormat chFmt, const Bool printMSEBasedSNR, const Bool printSequenceMSE
#if JVET_D0134_PSNR
    , const Bool trueBitdepthPSNR
#endif
    , const BitDepths &bitDepths)
  {
    fprintf(fd, "\tTotal Frames | %16s %16s %16s %16s %16s %6s\n", "Bitrate", "Y-PSNR", "U-PSNR", "V-PSNR", "YUV-MSE", "MAXVAL");

    Double dFps = m_dFrmRate; //--CFG_KDY
    Double dScale = dFps / 1000 / (Double)m_uiNumPic;

    Double PSNRyuv = MAX_DOUBLE;
    Double MSEyuv = MAX_DOUBLE;
    UInt maxval = 0;
    
    calculateCombinedValues(chFmt, PSNRyuv, MSEyuv
#if JVET_D0134_PSNR
       , trueBitdepthPSNR
#endif  
       , bitDepths
       , &maxval
    );

    union udouble {
      Double d;
      uint64_t u;
    };

    udouble vals[5] = {};
    vals[0].d = getBits() * dScale;
    vals[1].d = getPsnr(COMPONENT_Y) / (Double)getNumPic();
    vals[2].d = getPsnr(COMPONENT_Cb) / (Double)getNumPic();
    vals[3].d = getPsnr(COMPONENT_Cr) / (Double)getNumPic();
    vals[4].d = MSEyuv;

    fprintf(fd, "\t%9d    %c %016llx %016llx %016llx %016llx %016llx %6d", getNumPic(), cDelim, (long long unsigned int)vals[0].u, (long long unsigned int)vals[1].u, 
      (long long unsigned int)vals[2].u, (long long unsigned int)vals[3].u, (long long unsigned int)vals[4].u, maxval);
  }
#endif

#if JVET_D0134_PSNR
#if JVET_F0064_MSSSIM
  Void    printOut ( Char cDelim, const ChromaFormat chFmt, const Bool printMSEBasedSNR, const Bool printSequenceMSE, const Bool printMSSSIM, const Bool trueBitdepthPSNR, const BitDepths &bitDepths )
#else
  Void    printOut ( Char cDelim, const ChromaFormat chFmt, const Bool printMSEBasedSNR, const Bool printSequenceMSE, const Bool trueBitdepthPSNR, const BitDepths &bitDepths )
#endif
#else
#if JVET_F0064_MSSSIM
  Void    printOut ( Char cDelim, const ChromaFormat chFmt, const Bool printMSEBasedSNR, const Bool printSequenceMSE, const Bool printMSSSIM, const BitDepths &bitDepths )
#else
  Void    printOut ( Char cDelim, const ChromaFormat chFmt, const Bool printMSEBasedSNR, const Bool printSequenceMSE, const BitDepths &bitDepths )
#endif
#endif
  {
    Double dFps     =   m_dFrmRate; //--CFG_KDY
    Double dScale   = dFps / 1000 / (Double)m_uiNumPic;

    Double MSEBasedSNR[MAX_NUM_COMPONENT];
    if (printMSEBasedSNR)
    {
      for (UInt componentIndex = 0; componentIndex < MAX_NUM_COMPONENT; componentIndex++)
      {
        const ComponentID compID = ComponentID(componentIndex);

        if (getNumPic() == 0)
        {
          MSEBasedSNR[compID] = 0 * dScale; // this is the same calculation that will be evaluated for any other statistic when there are no frames (it should result in NaN). We use it here so all the output is consistent.
        }
        else
        {
          //NOTE: this is not the true maximum value for any bitDepth other than 8. It comes from the original HM PSNR calculation
#if JVET_D0134_PSNR
          const UInt maxval = ( trueBitdepthPSNR == true ) ? (1 << bitDepths.recon[toChannelType(compID)]) - 1 : 255 << (bitDepths.recon[toChannelType(compID)] - 8);
#else
          const UInt maxval = 255 << (bitDepths.recon[toChannelType(compID)] - 8);
#endif
          const Double MSE = m_MSEyuvframe[compID];

          MSEBasedSNR[compID] = (MSE == 0) ? 999.99 : (10 * log10((maxval * maxval) / (MSE / (Double)getNumPic())));
        }
      }
    }

    switch (chFmt)
    {
      case CHROMA_400:
        if (printMSEBasedSNR)
        {
          printf( "         \tTotal Frames |   "   "Bitrate     "  "Y-PSNR" );

#if JVET_F0064_MSSSIM
          if (printMSSSIM)
          {
            printf( "    Y-MS-SSIM");
          }
#endif

          if (printSequenceMSE)
          {
            printf( "    Y-MSE\n" );
          }
          else
          {
            printf("\n");
          }

          //printf( "\t------------ "  " ----------"   " -------- "  " -------- "  " --------\n" );
          printf( "Average: \t %8d    %c "          "%12.4lf  "    "%8.4lf",
                 getNumPic(), cDelim,
                 getBits() * dScale,
                 getPsnr(COMPONENT_Y) / (Double)getNumPic() );
                 
#if JVET_F0064_MSSSIM
          if (printMSSSIM)
          {
            printf("    %1.6lf", getMsssim(COMPONENT_Y) / (Double)getNumPic()); 
          }
#endif
          if (printSequenceMSE)
          {
            printf( "  %8.4lf\n", m_MSEyuvframe[COMPONENT_Y ] / (Double)getNumPic() );
          }
          else
          {
            printf("\n");
          }

          printf( "From MSE:\t %8d    %c "          "%12.4lf  "    "%8.4lf\n",
                 getNumPic(), cDelim,
                 getBits() * dScale,
                 MSEBasedSNR[COMPONENT_Y] );
        }
        else
        {
          printf( "\tTotal Frames |   "   "Bitrate     "  "Y-PSNR" );

#if JVET_F0064_MSSSIM
          if (printMSSSIM)
          {
            printf( "Y-MS-SSIM");
          }
#endif
          if (printSequenceMSE)
          {
            printf( "    Y-MSE\n" );
          }
          else
          {
            printf("\n");
          }

          //printf( "\t------------ "  " ----------"   " -------- "  " -------- "  " --------\n" );
          printf( "\t %8d    %c "          "%12.4lf  "    "%8.4lf",
                 getNumPic(), cDelim,
                 getBits() * dScale,
                 getPsnr(COMPONENT_Y) / (Double)getNumPic() );

#if JVET_F0064_MSSSIM
          if (printMSSSIM)
          {
            printf("%1.6lf", getMsssim(COMPONENT_Y) / (Double)getNumPic()); 
          }
#endif
          if (printSequenceMSE)
          {
            printf( "  %8.4lf\n", m_MSEyuvframe[COMPONENT_Y ] / (Double)getNumPic() );
          }
          else
          {
            printf("\n");
          }
        }
        break;
      case CHROMA_420:
      case CHROMA_422:
      case CHROMA_444:
        {
          Double PSNRyuv = MAX_DOUBLE;
          Double MSEyuv  = MAX_DOUBLE;

#if JVET_D0134_PSNR
          calculateCombinedValues(chFmt, PSNRyuv, MSEyuv, trueBitdepthPSNR, bitDepths);
#else
          calculateCombinedValues(chFmt, PSNRyuv, MSEyuv, bitDepths);
#endif

          if (printMSEBasedSNR)
          {
            printf( "         \tTotal Frames |   "   "Bitrate     "  "Y-PSNR    "  "U-PSNR    "  "V-PSNR    "  "YUV-PSNR " );

#if JVET_F0064_MSSSIM
            if (printMSSSIM)
            {
              printf("   Y-MS-SSIM    " "U-MS-SSIM    " "V-MS-SSIM ");
            }
#endif      
            if (printSequenceMSE)
            {
              printf( " Y-MSE     "  "U-MSE     "  "V-MSE    "  "YUV-MSE \n" );
            }
            else
            {
              printf("\n");
            }

            //printf( "\t------------ "  " ----------"   " -------- "  " -------- "  " --------\n" );
            printf( "Average: \t %8d    %c "          "%12.4lf  "    "%8.4lf  "   "%8.4lf  "    "%8.4lf  "   "%8.4lf",
                   getNumPic(), cDelim,
                   getBits() * dScale,
                   getPsnr(COMPONENT_Y) / (Double)getNumPic(),
                   getPsnr(COMPONENT_Cb) / (Double)getNumPic(),
                   getPsnr(COMPONENT_Cr) / (Double)getNumPic(),
                   PSNRyuv );
#if JVET_F0064_MSSSIM               
            if (printMSSSIM)
            {
              printf("    %1.6lf     " "%1.6lf     " "%1.6lf ",
                     getMsssim(COMPONENT_Y) / (Double)getNumPic(),
                     getMsssim(COMPONENT_Cb) / (Double)getNumPic(),
                     getMsssim(COMPONENT_Cr) / (Double)getNumPic());
            }
#endif
            if (printSequenceMSE)
            {
              printf( "  %8.4lf  "   "%8.4lf  "    "%8.4lf  "   "%8.4lf\n",
                     m_MSEyuvframe[COMPONENT_Y ] / (Double)getNumPic(),
                     m_MSEyuvframe[COMPONENT_Cb] / (Double)getNumPic(),
                     m_MSEyuvframe[COMPONENT_Cr] / (Double)getNumPic(),
                     MSEyuv );
            }
            else
            {
              printf("\n");
            }

            printf( "From MSE:\t %8d    %c "          "%12.4lf  "    "%8.4lf  "   "%8.4lf  "    "%8.4lf  "   "%8.4lf\n",
                   getNumPic(), cDelim,
                   getBits() * dScale,
                   MSEBasedSNR[COMPONENT_Y],
                   MSEBasedSNR[COMPONENT_Cb],
                   MSEBasedSNR[COMPONENT_Cr],
                   PSNRyuv );
          }
          else
          {
            printf( "\tTotal Frames |   "   "Bitrate     "  "Y-PSNR    "  "U-PSNR    "  "V-PSNR    "  "YUV-PSNR " );
#if JVET_F0064_MSSSIM            
            if (printMSSSIM)
            {
              printf("   Y-MS-SSIM    " "U-MS-SSIM    " "V-MS-SSIM ");
            }
#endif
#if EXTENSION_360_VIDEO
            m_ext360.printHeader();
#endif
            
            if (printSequenceMSE)
            {
              printf( " Y-MSE     "  "U-MSE     "  "V-MSE    "  "YUV-MSE \n" );
            }
            else
            {
              printf("\n");
            }

            //printf( "\t------------ "  " ----------"   " -------- "  " -------- "  " --------\n" );
            printf( "\t %8d    %c "          "%12.4lf  "    "%8.4lf  "   "%8.4lf  "    "%8.4lf  "   "%8.4lf",
                   getNumPic(), cDelim,
                   getBits() * dScale,
                   getPsnr(COMPONENT_Y) / (Double)getNumPic(),
                   getPsnr(COMPONENT_Cb) / (Double)getNumPic(),
                   getPsnr(COMPONENT_Cr) / (Double)getNumPic(),
                   PSNRyuv );
#if JVET_F0064_MSSSIM
            if (printMSSSIM)
            {
              printf("    %1.6lf     " "%1.6lf     " "%1.6lf ",
                     getMsssim(COMPONENT_Y) / (Double)getNumPic(),
                     getMsssim(COMPONENT_Cb) / (Double)getNumPic(),
                     getMsssim(COMPONENT_Cr) / (Double)getNumPic());
            }
#endif

#if EXTENSION_360_VIDEO
            m_ext360.printPSNRs(getNumPic());
#endif

            if (printSequenceMSE)
            {
              printf( "  %8.4lf  "   "%8.4lf  "    "%8.4lf  "   "%8.4lf\n",
                     m_MSEyuvframe[COMPONENT_Y ] / (Double)getNumPic(),
                     m_MSEyuvframe[COMPONENT_Cb] / (Double)getNumPic(),
                     m_MSEyuvframe[COMPONENT_Cr] / (Double)getNumPic(),
                     MSEyuv );
            }
            else
            {
              printf("\n");
            }
          }
        }
        break;
      default:
        fprintf(stderr, "Unknown format during print out\n");
        exit(1);
        break;
    }
  }

#if JVET_D0134_PSNR
  Void    printSummary(const ChromaFormat chFmt, const Bool printSequenceMSE, const Bool trueBitdepthPSNR, const BitDepths &bitDepths, const std::string &sFilename)
#else
  Void    printSummary(const ChromaFormat chFmt, const Bool printSequenceMSE, const BitDepths &bitDepths, const std::string &sFilename)
#endif
  {
    FILE* pFile = fopen (sFilename.c_str(), "at");

    Double dFps     =   m_dFrmRate; //--CFG_KDY
    Double dScale   = dFps / 1000 / (Double)m_uiNumPic;
    switch (chFmt)
    {
      case CHROMA_400:
        fprintf(pFile, "%f\t %f\n",
            getBits() * dScale,
            getPsnr(COMPONENT_Y) / (Double)getNumPic() );
        break;
      case CHROMA_420:
      case CHROMA_422:
      case CHROMA_444:
        {
          Double PSNRyuv = MAX_DOUBLE;
          Double MSEyuv  = MAX_DOUBLE;
          
#if JVET_D0134_PSNR
          calculateCombinedValues(chFmt, PSNRyuv, MSEyuv, trueBitdepthPSNR, bitDepths);
#else
          calculateCombinedValues(chFmt, PSNRyuv, MSEyuv, bitDepths);
#endif

          fprintf(pFile, "%f\t %f\t %f\t %f\t %f",
              getBits() * dScale,
              getPsnr(COMPONENT_Y) / (Double)getNumPic(),
              getPsnr(COMPONENT_Cb) / (Double)getNumPic(),
              getPsnr(COMPONENT_Cr) / (Double)getNumPic(),
              PSNRyuv );

          if (printSequenceMSE)
          {
            fprintf(pFile, "\t %f\t %f\t %f\t %f\n",
                m_MSEyuvframe[COMPONENT_Y ] / (Double)getNumPic(),
                m_MSEyuvframe[COMPONENT_Cb] / (Double)getNumPic(),
                m_MSEyuvframe[COMPONENT_Cr] / (Double)getNumPic(),
                MSEyuv );
          }
          else
          {
            fprintf(pFile, "\n");
          }

          break;
        }

      default:
          fprintf(stderr, "Unknown format during print out\n");
          exit(1);
          break;
    }

    fclose(pFile);
  }
};

extern TEncAnalyze             m_gcAnalyzeAll;
extern TEncAnalyze             m_gcAnalyzeI;
extern TEncAnalyze             m_gcAnalyzeP;
extern TEncAnalyze             m_gcAnalyzeB;

extern TEncAnalyze             m_gcAnalyzeAll_in;

//! \}

#endif // !defined(AFX_TENCANALYZE_H__C79BCAA2_6AC8_4175_A0FE_CF02F5829233__INCLUDED_)
